Build is failing with error: ‘fmt::v10::detail::type_is_unformattable_for<const facebook::cachelib::navy::Status, char> _’ has incomplete type 1600 | type_is_unformattable_for<T, typename Context::char_type> _; | ^

[sairahul-chalamalasetti]

Describe the bug While building the cachelib with ./contrib/build.sh -j -T the build is failing with below error

error: ‘fmt::v10::detail::type_is_unformattablefor<const facebook::cachelib::navy::Status, char> ’ has incomplete type 1600 | type_is_unformattable_for<T, typename Context::chartype> ; | ^

To Reproduce Steps to reproduce the behavior: Clone the cachelib and run "./contrib/build.sh -j -T "

Expected behavior The build the failing with already defined above error

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Additional context Ubuntu 22:04.4 LTS Kernel: 6.9.0-060900-generic g++ version: g++ (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0

[fan982]

I have meet the same error, waiting for a solution.

[tang-hi]

Put the code below in cachelib/navy/common/Types.h. It works for me.

inline auto format_as(Status status) {
  return fmt::underlying(status);
}

[sairahul-chalamalasetti]

This fix helped to build on Kernel 6.9. Can this be merged to the repository ?

[tang-hi]

I will try to raise a PR to merge it into the repo later